References

we worked on special technology which is a part of VISION X concept powered by a four-cylinder petrol engine and electric power (to the rear wheels)

World-Wide Technology Presented at the Motor Show 2018 in Geneva

the Li-ion battery weighs about ten kilograms, placed under the floor of the trunk and is recharged while driving: during braking and idling, the car turns the kinetic energy into the electricity it charges into the batteries and later uses it to drive